Board Question

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>>61514130
Actually now that I look at it again, I think that brown is actually gold.

So 6.5 Ohms 10%?

>>61514159
Or maybe, the first one is black instead of blue, so that would be .5 omh.

Holy fuck, please send help.

>>61514159
>>61514181
yeah looks like definitely black and definitely gold from here

>>61514190
Alright, so since I'm not getting any reading. It's bad?

Appreciate it.

Set your meter to resistance and contact each end. Do you have a good fluke or a $5 home Depot meter?

>>61514337
Have an Innova 3306, set to 20k. All other resistors give readings.

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>>61514362
Tried this thing but it doesn't match what you said it should be. It could be a 650k but I doubt it.

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>>61514130
i think that's not a resistor, but a Inductor.
i tried to match the colours to resistor mode but cant do.

check my screenshot for the values is it is a inductor.

i hope it helps.

>>61514415
Oh if that is indeed an inductor then it's most likely good. Resistance reading at 2000 cycles between 0 and 1. So it would be reading good.

Thanks.

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>>61514415
>>61514457
no prob.
check the table for inductor colour values.

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EE here. That's without a doubt an inductor.

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>>61514858
>>61514486
Thanks. I know very little about this stuff and am just getting into it.

Whats the easiest way to tell the difference between an inductor and a resistor?

>>61514913
The resistors are the three pickle-shaped things aligned in parallel near the center of the board.

>>61514913
no idea lol, i know as much as you.
i just play around with arduinos and i only know the basic.

>>61514913
Usually larger than a resistor and usually a weird number of bands or color order. After you see a bunch of them you can just kind of tell.

I still occasionally get fooled by really old stuff. The only fool proof way to know is to be the one buying the components or just have a copy of the schematic.

>trying to measure resistance of a components that's already soldered into a board

Please don't do this. Ohmmeters measure resistance by pumping current through the circuit. You can very easily fry something, especially if you're trying to measure a very large resistance because that needs more current from the meter.

Also that doesn't look like a resistor. They usually don't come in nice clean sharp cylinders like that.

>>61515027
>Pumping current

Yeah like 1mA, nice bait. The larger problem with measuring components in a board is that the component isn't isolated so you may get a reading different from what you expect due to a parallel resistance in the circuit.

>>61514941

What op's talking about is also a resistor, just one with a higher load rating (watts).

Now, if you measure the resistance between the 2 poles of the resistor when connected to a circuit, you measure the resistance of the whole circuit (everything that is parallel to the resistor in question)

>Shouldn't this resistor circled be 650 omh if I read it on my meter?

No, unless you unsolder and test by itself. If you measure as it is, the resistance vallue on your meter will be smaller.

Now, I don't see why test that component, resistors rarly go bad and if they do, they generally open (and look burnt). If OP have a problen, I sigest test the transistor...

>>61515110

exactly

>>61514130
you are measuring the total equivalent resistance between those points, so you are measuring that resistance plus the other ones posibly in paralel an series on the circuit, so yeah that's not the way to measure it.
tl;dr go read a book on circuit theory.

>>61514130
You can't measure resistance if it's still on the board without knowing if those leads aren't connected elsewhere too.

>>61515331
That doesn't make any sense. If I put a point at one end of the resistor and the other end of the resistor. What the fuck else would it even have to read.

>>61515339
>I don't know what a PCB is: The Post

>>61515441
>thread already states that
>proceeds to be of no fucking help
Neck yourself.

>>61515456
>Can't understand that my post was alluding to the fact that posts have stated that

Who do you think answered OPs post?

>>61515514
Then do explain how reading two resistors down the chain could affect the resistor you are reading. When you have the only points of contact being on that resistor.

>>61515595
Examle circuit:
[GND]-[2kOhm]-[1kOhm]-[1kOhm]-[GND]

Measure on each side of the 2kOhm resistor and the meter will read 1kOhm. Reference the Thevenin Equivalent circuit chapter of any intro circuit textbook.

>>61515339
The resistor you're seeing isn't necessarily the only connection between those 2 points.

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>>61515711
>>61515688

If I put a point on 1, and a point 2 of each of these and I another reading. Then there is a fucking short, other wise you will only ever read the resistor.

>>61515857
Yeah, I only have to write test procedures for techs to test my designs, what do I know?

Your statement would only be true of this particular circuit if you make he naive assumption that there are no other traces on the back of the board and that it is only a single layer PCB.

>>61515857
You're fucking retarded that deserves no help. Fuck off

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>>61515857
1st off, its a fucking resistor. 2nd, you HAVE TO REMOVE IT in order to determine if its the problem. Come back after that.

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>>61515940
I bet you graduated from UCF and work at Lockheed.

>>61516255
I should also mention that the resistor looks fine, its unlikely to be what failed. That transistor without thermal paste seems more suspect to me. Or the diode.

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>>61515940
>>61516255
>>61516217
>states he knows nothing about what he's doing
>faggots tell him he knows nothing about what hes doing
>/g/

>>61516501
He's rejecting what we're telling him and claims otherwise, while also claiming he doesn't know how it works.

If you're gonna ask for help, at least have the fucking decency to listen. If you had read the whole reply chain you wouldn't be retard #2.